Results 1 to 10 of about 133,716 (312)

Weibo sentiments and stock return: A time-frequency view. [PDF]

open access: yesPLoS ONE, 2017
This study provides new insights into the relationships between social media sentiments and the stock market in China. Based on machine learning, we classify microblogs posted on Sina Weibo, a Twitter's variant in China into five detailed sentiments of ...
Yingying Xu   +3 more
doaj   +2 more sources

Stock Return Predictability: Is it There? [PDF]

open access: yesReview of Financial Studies, 2001
We ask whether stock returns in France, Germany, the UK and the US are predictable by three instruments: the dividend yield, the earnings yield and the short rate. The predictability regression is suggested by a present value model with earnings growth, payout ratios and the short rate as state variables.
Andrew Ang, Geert Bekaert
openaire   +1 more source

Heteroskedasticity in Stock Returns [PDF]

open access: yesThe Journal of Finance, 1990
ABSTRACTWe use predictions of aggregate stock return variances from daily data to estimate time‐varying monthly variances for size‐ranked portfolios. We propose and estimate a single factor model of heteroskedasticity for portfolio returns. This model implies time‐varying betas. Implications of heteroskedasticity and time‐varying betas for tests of the
Schwert, G William, Seguin, Paul J
openaire   +1 more source

On Stock Market Returns and Returns on Investment [PDF]

open access: yesThe Journal of Finance, 1994
ABSTRACTThis article presents general conditions under which it is possible to obtain asset pricing relations from the intertemporal optimal investment decision of the firm. Under the assumption of linear homogeneous production and adjustment cost functions (the Hayashi (1982) conditions), it is possible to establish, state by state, the equality ...
Restoy, Fernando, Rockinger, G Michael
openaire   +1 more source

The Asymmetric Effects of Stock Returns on Trading Volume in Tehran Stock Exchange [PDF]

open access: yesIranian Journal of Accounting, Auditing & Finance, 2018
Many studies have certified the relationship between stock return and trade capacity, however, the results about the effects of this variable’s volatilities in trade volume have been contradictory (Chen 2001).
Roya Aleemran   +2 more
doaj   +1 more source

THE EFFECT OF FINANCIAL PERFORMANCE ON STOCK RETURN AT MANUFACTURING COMPANY OF INDONESIA STOCK EXCHANGE [PDF]

open access: yesRussian Journal of Agricultural and Socio-Economic Sciences, 2020
The purpose of this study is to find out the effect of return on investment, earning per share, operational cash flow, economic value added, and market value added towards the stock return at manufacturing companies in Indonesia Stock Exchange.
Juniarta I W., Purbawangsa I.B.A.
doaj   +1 more source

Comoment Risk and Stock Return [PDF]

open access: yesSSRN Electronic Journal, 2009
AbstractWe estimate investable comoment equity risk premiums for the US markets. The stock's contribution to the asymmetry and the fat tails of the market portfolio's payoff are priced into a coskewness premium and a cokurtosis premium. We construct zero-investment strategies that are long and short in coskewness and cokurtosis equity risks; we infer ...
Lambert, Marie, Hübner, Georges
openaire   +3 more sources

Multifrequency News and Stock Returns [PDF]

open access: yesJournal of Financial Economics, 2005
Recent research documents that aggregate stock prices are driven by shocks with persistence levels ranging from daily intervals to several decades. Building on these insights, we introduce a parsimonious equilibrium model in which regime-shifts of heterogeneous durations affect the volatility of dividend news.
Laurent E. Calvet, Adlai J. Fisher
openaire   +2 more sources

REGIME CHANGES IN STOCK RETURNS [PDF]

open access: yesJournal of Business Finance & Accounting, 1994
This paper studies three sources of instability in parameter estimates of stock return models (1) time‐varying expected mean returns, (2) time‐varying return volatility and (3) changing institutional factors. We model United States stock returns as a function of a constant expected return and financing costs resulting from an institutional feature ...
Nan-Ting Chou, Ramon P. DeGennaro
openaire   +2 more sources

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